full2010.pdf - page 1355

1317
˜µ¦µŠš¸É 2 Áª¨µÄœ„µ¦Á„·—ž’·„·¦·¥µÂ¨³‡ªµ¤®œµÂœnœ °Š¡°¨·¥¼¦¸ÁšœÃ¢¤ÂÂ Ȋ
NCO
index
Catalysts
Cream time
(min) Gel time(min)
Tack free time
(min) Rise time(min) Density(Kg/m
3)
100
DMCHA 0:18 0:22 4:27 3:39 42.8
Cu(tetraen)2 0:48 0:58 3:45 3:20 40.1
Zn(tetraen)2 0:47 1:06 4:13 4:27 37.0
Cu(tetraen)2 : Zn(tetraen) 2 0:49 1:14 2:54 3:39 38.4
150
DMCHA 0:18 0:25 5:47 4:53 48.0
Cu(tetraen)2 0:44 1:14 4:53 3:52 53.0
Zn(tetraen)2 0:43 1:37 6:08 5:57 50.1
Cu(tetraen)2 : Zn(tetraen) 2 0:45 1:35 4:42 5:22 49.4
¦¼žš¸É 2 IR spectrum ˜´ªÁ¦nŠž’·„·¦·¥µµ¦ž¦³„°Á·ŠŽo°œ °ŠÃ¨®³Ÿ¤ Cu(tetraen)2 : Zn(tetraen)2
‹µ„¦¼žš¸É 2 IR spectrum ž¦µ„‘Á¨ ‡¨ºÉœš¸É 3395 cm-1 (N-H stretching °ŠÂ°¤¸œ), 1570 cm-1 ¨³
1408 cm-1 (C = O stretching °ŠÂ°Ž·Á˜š)
45
50
55
60
65
70
75
80
85
90
95
100
105
%T
1000 1500 2000 2500 3000 3500 4000
Wavenumbers (cm-1)